Form Validation: using set_rules as conditional?

[eluser]CroNiX[/eluser]
Probably something like this would work:

Code:

$this->form_validation->set_rules('password', 'Password', 'trim|required|callback_test');
$this->form_validation->set_rules('email', 'Email', 'trim|required|callback_test2');

public function test()
{
     $this->form_validation->set_message('test', 'Test 1 Error');    
     $this->form_validation->test1 = FALSE;  //set a variable within the form validation that you can check within test2
     return FALSE;
}

public function test2()
{
    $this->form_validation->set_message('test2', 'Test 2 Error');    
    if($this->form_validation->test1 === FALSE)
    {
        //do something
    }
    return FALSE;
}